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App. No. 09/811,471 · Confirmation No. 7953

PERPENDICULAR-MAGNETIC RECORDING MEDIA AND MAGNETIC RECORDING APPARATUS

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗ View Publication ↗
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 Code Description Pages PDF
2010-08-25 C.AD Change of Address 1 View
2010-08-25 N417 Electronic Filing System Acknowledgment Receipt 2 View
2001-03-20 TRNA Transmittal of New Application 1 View
2001-03-20 SPEC Specification 24 View
2001-03-20 CLM Claims 4 View
2001-03-20 ABST Abstract 1 View
2001-03-20 DRW Drawings-only black and white line drawings 3 View
2001-03-20 OATH Oath or Declaration filed 4 View
2001-03-20 TRNA Transmittal of New Application 1 View
2001-03-20 SPEC Specification 24 View
2001-03-20 CLM Claims 4 View
2001-03-20 ABST Abstract 1 View
2001-03-20 DRW Drawings-only black and white line drawings 3 View
2001-03-20 OATH Oath or Declaration filed 4 View
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Quick Facts
App. No.
09/811,471
Filed
2001-03-20
Granted
2003-03-04
Pub. No.
US20020004151A1
Art Unit
1773
PTA
0 days